- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201710-07 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: High Title: OCaml: Privilege escalation Date: October 08, 2017 Bugs: #622544 ID: 201710-07 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== A vulnerability in OCaml may allow local users to gain root privileges. Background ========== OCaml is a high-level, strongly-typed, functional, and object-oriented programming language from the ML family of languages. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-lang/ocaml < 4.04.2 >= 4.04.2 Description =========== A bad sanitization of environment variables: CAML_CPLUGINS, CAML_NATIVE_CPLUGINS and CAML_BYTE_CPLUGINS in the OCaml compiler allows the execution of raised privileges via external code. Impact ====== A local attacker, by using specially crafted environment variables, could possibly escalate privileges to the root group. Workaround ========== There is no known workaround at this time. Resolution ========== All OCaml users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-lang/ocaml-4.04.2" References ========== [ 1 ] CVE-2017-9772 https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-9772 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201710-07 Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org. License ======= Copyright 2017 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. http://creativecommons.org/licenses/by-sa/2.5